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Alloy used in making anchors, bolts, ch...

Alloy used in making anchors, bolts, chains and wires

A

pig iron

B

cast iron

C

wrought iron

D

german silver

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The correct Answer is:
C
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AAKASH SERIES-PRINCIPLES OF METALLURGY-OBJECTIVE EXERCISE-1
  1. In the electrolytic reduction of alumina, the anodic product is

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  2. Coinage alloy contains copper. The other metal present may be

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  3. Alloy used in making anchors, bolts, chains and wires

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  4. (A) : Cassiterite mineral is concentrated by electromagnetic method ...

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  5. (A): Efficiency of the reverberatary furnace is less (R): The waste ...

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  6. (A): In the smelting of copper pyrites in blast furnace, Cu2 S formed ...

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  7. (A): Iron pyrate is used in the extraction of iron releases pollutants...

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  8. (A) Reduction of a metal oxide is easier if the metal formed is in liq...

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  9. (A): Leaching is chemical method used to ore benefication process (R...

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  10. (A): Hydrated oxides are usually subjected to roasting (R) : Hydrate...

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  11. (A): Levigation is used for the separation of oxide ores from impuriti...

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  12. (A): High purity gallium for semiconducting purpose can be obtained by...

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  13. (A): Copper metal can be extracted by electrolysis even from aqueous s...

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  14. (A): Last traces of lead from silver is removed by cupellation (R): ...

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  15. (A): Zinc can be refined from lead by distillation (R): Vapour press...

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  16. (A): Metals like Sn and Pb can be refined by liquation (R) : Sn and ...

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  17. (A): Mond's process is used to refine nickel metal (R) : With carbon...

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  18. (A): Corrosion involves the oxidation of metal (R): Oxidised form of...

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  19. (A): Silver cyanide complex is treated with zinc to precipitate silver...

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  20. (A): In aluminothermic process, Al reduction increases the heat of the...

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